from time import time
time0=time()
from random import randint,random
e=2.718281828

N,M,K=map(int,input().split())
A=list(map(int,input().split()))
A.append(0)

ANS=[0]*K
score=0
MAX=0

while time()-time0<1.8:
    x,y=randint(0,K-1),randint(0,N)

    before=ANS[x]
    plus=y-before

    if plus>0 and score+plus<=M:
        ANS[x]=y
        score+=plus
        MAX=max(MAX,score)
        
    elif score+plus<=M:

        mu=e**(plus*2/time()-time0)

        if mu>0:
            ANS[x]=y
            score+=plus
            MAX=max(MAX,score)
            

print(MAX)